How to simplify [ 1 0 0] to red?

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Conner Carriere 2021-2-10

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链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/741032-how-to-simplify-1-0-0-to-red

评论： Walter Roberson 2021-2-10

This is my code that checks which color I have and converts it to matlab syntax

%{
Red = [0 0 0; 255 20 20]; should be complete
Orange = [240 50 0; 255 146 100]; should be complete
Blue = [0 0 0; 20 20 255]; should be complete
Green = [0 200 60; 46 255 150]; should be complete
White = [190 200 200; 255 255 255]; should be complete
Yellow = [215 230 0; 255 255 34]; should be complete
%}
function ColorIdent = ColorID(h)
for w = 1: size(h,1)
    
if [(h(w,1) <= 255),(h(w,2) <= 20),(h(w,3) <= 20)] %Red limits
     ColorIdent(w,:) = [1 0 0]; %Red
   
elseif [(h(w,1) >= 240),((h(w,2) >= 50) && (h(w,2) <= 146)),(h(w,3) <= 100)] %Orange limits
     ColorIdent(w,:) = [1 0 1]; %Orange but had to use magenta
     
elseif [(h(w,1) <= 20),(h(w,2) <= 20),(h(w,3) <= 255)&&(h(w,3) >= 0)] %Blue limits
     ColorIdent(w,:) = [0 0 1]; %Blue
     
elseif [(h(w,1) <= 46),(h(w,2) >= 200),(h(w,3) <= 150)&&(h(w,3) >= 60)] %Green limits
     ColorIdent(w,:) = [0 1 0]; %Green
    
elseif [(h(w,1) >= 190),(h(w,2) >= 200),(h(w,3) >= 200)] %White limits
     ColorIdent(w,:) = [1 1 1]; %White
    
elseif [(h(w,1) >= 215),(h(w,2) >= 230),(h(w,3) <= 140)] %Yellow limits
     ColorIdent(w,:) = [1 1 0]; %Yellow
     
     
     
     
end
end
end

What I want to do is change the rgb triplet to its respective color

so if [1 0 0] then r

if [1 0 1] then m

if [0 0 1] then b

so on so forth

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Conner Carriere 2021-2-10

This is good, but is there a way i can call the variable r later?

so i would ask r = [1 0 0]

Walter Roberson 2021-2-10

在 MATLAB Online 中打开

ColorCodes = 'kbgyrmcw';
k = [0 0 0]; b = [0 0 1]; g = [0 1 0]; y = [0 1 1]; r = [1 0 0]; m = [1 0 1]; c = [1 1 0]; w = [1 1 1];
idx = rgb2ind(reshape(h, [], 1, 3), [k;b;g;y;r;m;c;w]);
ColorIdent = ColorCodes(idx);